@mixin border-1px($color){
	position: relative;
	 &:after{
	 	display: block;
	    position: absolute;
	    left: 0;
	    bottom: 0;
	    width: 100%;
	    border-top: 1px solid $color;
	    content: ' ';
	 }
}

@mixin border-none(){
	&:after{
		display: none;
	}
}

@mixin bg-image($url){
	background-image: url($url + "@2x.png");
  @media (-webkit-min-device-pixel-ratio: 3),(min-device-pixel-ratio: 3){
	background-image: url($url + "@3x.png");
  }
}